36639625 has 16 divisors (see below), whose sum is σ = 49885056. Its totient is φ = 26646000.

The previous prime is 36639601. The next prime is 36639637. The reversal of 36639625 is 52693663.

It is a happy number.

It is not a de Polignac number, because 36639625 - 2⁵ = 36639593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11949 + ... + 14698.

It is an arithmetic number, because the mean of its divisors is an integer number (3117816).

Almost surely, 2^36639625 is an apocalyptic number.

It is an amenable number.

36639625 is a deficient number, since it is larger than the sum of its proper divisors (13245431).

36639625 is a wasteful number, since it uses less digits than its factorization.

36639625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26673 (or 26663 counting only the distinct ones).

The product of its digits is 174960, while the sum is 40.

The square root of 36639625 is about 6053.0674042175. The cubic root of 36639625 is about 332.1368073380.

The spelling of 36639625 in words is "thirty-six million, six hundred thirty-nine thousand, six hundred twenty-five".